The S-series currently consists of three processor models. All have exactly the same technical characteristics and performance as the corresponding regular models, but they are rated at a maximum thermal design power of 65 W. The Core 2 Quad Q8200S runs at 2.33 GHz and has two 2 MB L2 caches; the Core 2 Quad Q9400S is a 2.66 GHz part with two 3 MB caches; and the Q9550S top model runs at 2.83 GHz and has the full 6 MB L2 cache for each dual core die, resulting in a total of 12 MB L2 cache.